Staging: dream: pmem.c: Fix checkpatch.pl issues.

This patch resolves checkpatch.pl issues in the pmem.c file.

Signed-off-by: Nanakos Chrysostomos <nanakos@wired-net.gr>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>